Ark-0
Ark-0 is a test network for trying things out. It may be reset at any time.

Block 19109

Hash
0000006daa677e18ad11bc0fde3e934e77b016594f15a90bbcb02b5aadbc8a0b
Confirmations
21789
Time
2026-10-10 03:46:34 UTC
Median time
2026-10-10 03:37:02 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
38237a48f5220cd81089bd6b3c43928d6df43b6cb2a5e64a0c70dd29c1cdad08
Previous block
00000106f40adfca4f70143054e2b29d712bc5d3a3d20f2bb07dc0c9bdea937f
Next block
0000007795fcd4ed75cbc207248a98d375f72b788a8837ce025408856c031d7e

ML-DSA-44 block signature (M2)

M2 is an experimental rule of this test network. From a height set in its build, a node that enforces M2 accepts a block only if, besides the classical signet signature, the block carries a valid ML-DSA-44 signature by the Ark-0 block key, in its coinbase's witness commitment output. This page shows that signature; it does not check it.

Block 19109 is below the activation height 20000: nodes do not require this signature, and only log the result of checking it when run with -debug=validation. The block producer adds it from height 18000 on, so that nodes can check it before it is required.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
a69ffd025bdec844a12b6382569b2e85… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
38237a48f522…dd29c1cdad08 coinbase1250